Patents by Inventor Douglas A. Mulder

Douglas A. Mulder has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9511566
    Abstract: A coating composition for granular roofing has a liquid phase, such as a water, vinyl copolymer or a modified acrylic, and a material with high reflectance, such as CaCO3, TiO2, ceramic microspheres, nano-particles, talc dispersed therein to yield a low-viscosity coating. The coating is applied to a granular surface in a thin layer that does not significantly disturb the granular aesthetics, but covers the base material, e.g., modified bitumen, at least partially, to increase the overall reflectivity of the material. In some embodiments, the coating improves the physical integrity of the granular surface and increases resistance to environmental effects and may perform a pigment function. In one embodiment, the coating is applied as a powder followed by the application of a liquid. In another embodiment, the coating includes a water repellant.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: December 6, 2016
    Assignee: Polyglass USA, Inc.
    Inventors: Louis Lynn Grube, Natalino Zanchetta, Steve James Ceresola, Kirk Douglas Mulder
  • Publication number: 20120288678
    Abstract: A coating composition for granular roofing has a liquid phase, such as a water, vinyl copolymer or a modified acrylic, and a material with high reflectance, such as CaCO3, TiO2, ceramic microspheres, nano-particles, talc dispersed therein to yield a low-viscosity coating. The coating is applied to a granular surface in a thin layer that does not significantly disturb the granular aesthetics, but covers the base material, e.g., modified bitumen, at least partially, to increase the overall reflectivity of the material. In some embodiments, the coating improves the physical integrity of the granular surface and increases resistance to environmental effects and may perform a pigment function. In one embodiment, the coating is applied as a powder followed by the application of a liquid. In another embodiment, the coating includes a water repellant.
    Type: Application
    Filed: May 4, 2012
    Publication date: November 15, 2012
    Applicant: POLYGLASS USA INC.
    Inventors: Louis Lynn Grube, Natalino Zanchetta, Steve James Ceresola, JR., Kirk Douglas Mulder
  • Patent number: 7490532
    Abstract: A rotatably adjustable apparatus for locating geometric references on a workpiece. The present invention provides a housing having a linear actuator for actuating a locating member between an extended position, wherein the locating member engages the workpiece, and a retracted position, wherein the locating member disengages the workpiece. A substantially cylindrical locking member is connected to the locating member and is disposed within the housing. A releasable striker connected to and accessible from outside the housing matingly engages the locking member in a predetermined angular position to provide angular adjustment to the locating member. A sensing device is connected to the housing and senses the position of the locating member.
    Type: Grant
    Filed: June 1, 2004
    Date of Patent: February 17, 2009
    Assignee: Norgren Automotive, Inc.
    Inventor: Douglas A. Mulder
  • Patent number: 7156385
    Abstract: A linearly adjustable apparatus having a stroke adjustment for locating geometric references on a workpiece. The present invention provides a housing having a linear actuator for actuating a locating member between an extended position, wherein the locating member engages the workpiece, and a retracted position, wherein the locating member disengages the workpiece. A bearing assembly is connected to the housing and slidably supports the locating member. The bearing assembly has an external threaded portion that threadably engages an internal threaded portion of the housing to provide linear adjustment of the stroke length of the locating member along a longitudinal axis of the housing. A jam nut threadably engages the bearing assembly to secure the relative position of the bearing assembly relative to the housing.
    Type: Grant
    Filed: June 2, 2004
    Date of Patent: January 2, 2007
    Assignee: Norgren Automotive, Inc.
    Inventor: Douglas A. Mulder
  • Publication number: 20050006834
    Abstract: A linearly adjustable apparatus having a stroke adjustment for locating geometric references on a workpiece. The present invention provides a housing having a linear actuator for actuating a locating member between an extended position, wherein said locating member engages said workpiece, and a retracted position, wherein said locating member disengages said workpiece. A bearing assembly is connected to the housing and slidably supports the locating member. The bearing assembly has an external threaded portion that threadably engages an internal threaded portion of the housing to provide linear adjustment of the stroke length of the locating member along a longitudinal axis of the housing. A jam nut threadably engages the bearing assembly to secure the relative position of the bearing assembly relative to the housing.
    Type: Application
    Filed: June 2, 2004
    Publication date: January 13, 2005
    Inventor: Douglas Mulder
  • Publication number: 20040239025
    Abstract: A rotatably adjustable apparatus for locating geometric references on a workpiece. The present invention provides a housing having a linear actuator for actuating a locating member between an extended position, wherein the locating member engages the workpiece, and a retracted position, wherein the locating member disengages the workpiece. A substantially cylindrical locking member is connected to the locating member and is disposed within the housing. A releasable striker connected to and accessible from outside the housing matingly engages the locking member in a predetermined angular position to provide angular adjustment to the locating member. A sensing device is connected to the housing and senses the position of the locating member.
    Type: Application
    Filed: June 1, 2004
    Publication date: December 2, 2004
    Inventor: Douglas A. Mulder